bugdown: List py-markdown 3.0.1 features that we do not use.
bugdown: List py-markdown 3.0.1 features that we do not use.

Tweaked by tabbott to extend the documentation.

eeshangarg/zulip,andersk/zulip,tommyip/zulip,andersk/zulip,punchagan/zulip,kou/zulip,punchagan/zulip,punchagan/zulip,rht/zulip,tommyip/zulip,kou/zulip,shubhamdhama/zulip,showell/zulip,hackerkid/zulip,zulip/zulip,rishig/zulip,zulip/zulip,showell/zulip,timabbott/zulip,rht/zulip,zulip/zulip,showell/zulip,punchagan/zulip,shubhamdhama/zulip,punchagan/zulip,timabbott/zulip,brainwane/zulip,eeshangarg/zulip,punchagan/zulip,andersk/zulip,shubhamdhama/zulip,punchagan/zulip,timabbott/zulip,andersk/zulip,andersk/zulip,showell/zulip,andersk/zulip,rht/zulip,zulip/zulip,rht/zulip,synicalsyntax/zulip,rishig/zulip,brainwane/zulip,kou/zulip,shubhamdhama/zulip,hackerkid/zulip,rishig/zulip,rht/zulip,eeshangarg/zulip,brainwane/zulip,brainwane/zulip,rishig/zulip,showell/zulip,showell/zulip,kou/zulip,tommyip/zulip,timabbott/zulip,synicalsyntax/zulip,hackerkid/zulip,rht/zulip,shubhamdhama/zulip,hackerkid/zulip,eeshangarg/zulip,rishig/zulip,showell/zulip,kou/zulip,timabbott/zulip,synicalsyntax/zulip,zulip/zulip,rishig/zulip,tommyip/zulip,synicalsyntax/zulip,eeshangarg/zulip,eeshangarg/zulip,synicalsyntax/zulip,rishig/zulip,zulip/zulip,hackerkid/zulip,synicalsyntax/zulip,tommyip/zulip,zulip/zulip,kou/zulip,brainwane/zulip,hackerkid/zulip,shubhamdhama/zulip,brainwane/zulip,timabbott/zulip,rht/zulip,shubhamdhama/zulip,synicalsyntax/zulip,brainwane/zulip,eeshangarg/zulip,tommyip/zulip,timabbott/zulip,hackerkid/zulip,andersk/zulip,tommyip/zulip,kou/zulip